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Polyhalite
Polyhalite

Thomsonite
Thomsonite



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Polyhalite
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Thomsonite

Polyhalite and Thomsonite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
Soluble
-
2.78
Conchoidal
Perfect on {10 1 }; parting on {010}
3.5
K2Ca2Mg(SO4)4·2H2O
 
-
-
-
2.25-2.40
-
perfect on {010}; good on {100}
5-5.5
NaCa 2Al 5Si 5O 20 · 6H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Polyhalite and Thomsonite Chemical Formula

While comparing Polyhalite and Thomsonite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Polyhalite and Thomsonite chemical formula.

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Polyhalite and Thomsonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Polyhalite and Thomsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Polyhalite Vs Thomsonite during the identification of gemstone. Specific gravity of Polyhalite is whereas that of Thomsonite is .